Puncture (Euro) by Alex Linian

A borrowed Euro held at your fingertips is visibly punctured with a pen...leaving the Euro shish-ka-bobbed onto the pen! The permanently punctured Euro and pen are immediately handed out for examination. There's only one explanation...you've somehow discovered how to really poke a pen through a solid coin!

The visual illusion of the pen going through their own Euro is 100% "oh my god" perfect.

The actual borrowed Euro is in full view as the pen contacts the coin.

The pen is normal and examinable..but has a very specific property that makes the effect possible.